Would you recommend those bendable titanium frames? Are those the really light ones? Does anyone have experience with them? Are they as comfortable as regular frames? And are there any drawbacks to them? Would you recommend something else? My eye insurance will cover new frames up to about $100-$150 this year and I want to get something comfortable and will maintain its shape if I lay on my side or if the glasses get pressed against my head and a pillow. Would these work for that?